1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
|
/*
* jQuery File Upload Image Preview & Resize Plugin 1.7.0
* https://github.com/blueimp/jQuery-File-Upload
*
* Copyright 2013, Sebastian Tschan
* https://blueimp.net
*
* Licensed under the MIT license:
* http://www.opensource.org/licenses/MIT
*/
/* jshint nomen:false */
/* global define, window, Blob */
(function (factory) {
'use strict';
if (typeof define === 'function' && define.amd) {
// Register as an anonymous AMD module:
define([
'jquery',
'load-image',
'load-image-meta',
'load-image-exif',
'load-image-ios',
'canvas-to-blob',
'./jquery.fileupload-process'
], factory);
} else {
// Browser globals:
factory(
window.jQuery,
window.loadImage
);
}
}(function ($, loadImage) {
'use strict';
// Prepend to the default processQueue:
$.blueimp.fileupload.prototype.options.processQueue.unshift(
{
action: 'loadImageMetaData',
disableImageHead: '@',
disableExif: '@',
disableExifThumbnail: '@',
disableExifSub: '@',
disableExifGps: '@',
disabled: '@disableImageMetaDataLoad'
},
{
action: 'loadImage',
// Use the action as prefix for the "@" options:
prefix: true,
fileTypes: '@',
maxFileSize: '@',
noRevoke: '@',
disabled: '@disableImageLoad'
},
{
action: 'resizeImage',
// Use "image" as prefix for the "@" options:
prefix: 'image',
maxWidth: '@',
maxHeight: '@',
minWidth: '@',
minHeight: '@',
crop: '@',
orientation: '@',
forceResize: '@',
disabled: '@disableImageResize'
},
{
action: 'saveImage',
quality: '@imageQuality',
type: '@imageType',
disabled: '@disableImageResize'
},
{
action: 'saveImageMetaData',
disabled: '@disableImageMetaDataSave'
},
{
action: 'resizeImage',
// Use "preview" as prefix for the "@" options:
prefix: 'preview',
maxWidth: '@',
maxHeight: '@',
minWidth: '@',
minHeight: '@',
crop: '@',
orientation: '@',
thumbnail: '@',
canvas: '@',
disabled: '@disableImagePreview'
},
{
action: 'setImage',
name: '@imagePreviewName',
disabled: '@disableImagePreview'
},
{
action: 'deleteImageReferences',
disabled: '@disableImageReferencesDeletion'
}
);
// The File Upload Resize plugin extends the fileupload widget
// with image resize functionality:
$.widget('blueimp.fileupload', $.blueimp.fileupload, {
options: {
// The regular expression for the types of images to load:
// matched against the file type:
loadImageFileTypes: /^image\/(gif|jpeg|png)$/,
// The maximum file size of images to load:
loadImageMaxFileSize: 10000000, // 10MB
// The maximum width of resized images:
imageMaxWidth: 1920,
// The maximum height of resized images:
imageMaxHeight: 1080,
// Defines the image orientation (1-8) or takes the orientation
// value from Exif data if set to true:
imageOrientation: false,
// Define if resized images should be cropped or only scaled:
imageCrop: false,
// Disable the resize image functionality by default:
disableImageResize: true,
// The maximum width of the preview images:
previewMaxWidth: 80,
// The maximum height of the preview images:
previewMaxHeight: 80,
// Defines the preview orientation (1-8) or takes the orientation
// value from Exif data if set to true:
previewOrientation: true,
// Create the preview using the Exif data thumbnail:
previewThumbnail: true,
// Define if preview images should be cropped or only scaled:
previewCrop: false,
// Define if preview images should be resized as canvas elements:
previewCanvas: true
},
processActions: {
// Loads the image given via data.files and data.index
// as img element, if the browser supports the File API.
// Accepts the options fileTypes (regular expression)
// and maxFileSize (integer) to limit the files to load:
loadImage: function (data, options) {
if (options.disabled) {
return data;
}
var that = this,
file = data.files[data.index],
dfd = $.Deferred();
if (($.type(options.maxFileSize) === 'number' &&
file.size > options.maxFileSize) ||
(options.fileTypes &&
!options.fileTypes.test(file.type)) ||
!loadImage(
file,
function (img) {
if (img.src) {
data.img = img;
}
dfd.resolveWith(that, [data]);
},
options
)) {
return data;
}
return dfd.promise();
},
// Resizes the image given as data.canvas or data.img
// and updates data.canvas or data.img with the resized image.
// Also stores the resized image as preview property.
// Accepts the options maxWidth, maxHeight, minWidth,
// minHeight, canvas and crop:
resizeImage: function (data, options) {
if (options.disabled || !(data.canvas || data.img)) {
return data;
}
options = $.extend({canvas: true}, options);
var that = this,
dfd = $.Deferred(),
img = (options.canvas && data.canvas) || data.img,
resolve = function (newImg) {
if (newImg && (newImg.width !== img.width ||
newImg.height !== img.height ||
options.forceResize)) {
data[newImg.getContext ? 'canvas' : 'img'] = newImg;
}
data.preview = newImg;
dfd.resolveWith(that, [data]);
},
thumbnail;
if (data.exif) {
if (options.orientation === true) {
options.orientation = data.exif.get('Orientation');
}
if (options.thumbnail) {
thumbnail = data.exif.get('Thumbnail');
if (thumbnail) {
loadImage(thumbnail, resolve, options);
return dfd.promise();
}
}
}
if (img) {
resolve(loadImage.scale(img, options));
return dfd.promise();
}
return data;
},
// Saves the processed image given as data.canvas
// inplace at data.index of data.files:
saveImage: function (data, options) {
if (!data.canvas || options.disabled) {
return data;
}
var that = this,
file = data.files[data.index],
dfd = $.Deferred();
if (data.canvas.toBlob) {
data.canvas.toBlob(
function (blob) {
if (!blob.name) {
if (file.type === blob.type) {
blob.name = file.name;
} else if (file.name) {
blob.name = file.name.replace(
/\..+$/,
'.' + blob.type.substr(6)
);
}
}
// Don't restore invalid meta data:
if (file.type !== blob.type) {
delete data.imageHead;
}
// Store the created blob at the position
// of the original file in the files list:
data.files[data.index] = blob;
dfd.resolveWith(that, [data]);
},
options.type || file.type,
options.quality
);
} else {
return data;
}
return dfd.promise();
},
loadImageMetaData: function (data, options) {
if (options.disabled) {
return data;
}
var that = this,
dfd = $.Deferred();
loadImage.parseMetaData(data.files[data.index], function (result) {
$.extend(data, result);
dfd.resolveWith(that, [data]);
}, options);
return dfd.promise();
},
saveImageMetaData: function (data, options) {
if (!(data.imageHead && data.canvas &&
data.canvas.toBlob && !options.disabled)) {
return data;
}
var file = data.files[data.index],
blob = new Blob([
data.imageHead,
// Resized images always have a head size of 20 bytes,
// including the JPEG marker and a minimal JFIF header:
this._blobSlice.call(file, 20)
], {type: file.type});
blob.name = file.name;
data.files[data.index] = blob;
return data;
},
// Sets the resized version of the image as a property of the
// file object, must be called after "saveImage":
setImage: function (data, options) {
if (data.preview && !options.disabled) {
data.files[data.index][options.name || 'preview'] = data.preview;
}
return data;
},
deleteImageReferences: function (data, options) {
if (!options.disabled) {
delete data.img;
delete data.canvas;
delete data.preview;
delete data.imageHead;
}
return data;
}
}
});
}));
|
